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Benthic Diatom Communities in Korean Estuaries: Species Appearances in Relation to Environmental Variables

In the Korean Peninsula’s southern estuaries, the distributive characteristics of epilithic diatoms and the important environmental factors predicting species occurrence were examined. The collection of diatoms and measurements of water quality and land-use were performed every May between 2009 and...

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Autores principales: Kim, Ha-Kyung, Cho, In-Hwan, Hwang, Eun-A, Kim, Yong-Jae, Kim, Baik-Ho
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6696093/
https://www.ncbi.nlm.nih.gov/pubmed/31357556
http://dx.doi.org/10.3390/ijerph16152681
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author Kim, Ha-Kyung
Cho, In-Hwan
Hwang, Eun-A
Kim, Yong-Jae
Kim, Baik-Ho
author_facet Kim, Ha-Kyung
Cho, In-Hwan
Hwang, Eun-A
Kim, Yong-Jae
Kim, Baik-Ho
author_sort Kim, Ha-Kyung
collection PubMed
description In the Korean Peninsula’s southern estuaries, the distributive characteristics of epilithic diatoms and the important environmental factors predicting species occurrence were examined. The collection of diatoms and measurements of water quality and land-use were performed every May between 2009 and 2016, with no influence from the Asian monsoon and snow. Throughout the study, 564 diatoms were classified with first and second dominant species of Nitzschia inconspicua and N. perminuta. Based on diatom appearance and standing crops, the 512 sampling stations were divided into four groups by cluster analysis, and two regions, namely the West and East Sea. Geographically, G1, G2, G3, and G4 were located in the East Sea, Southeast Sea, West Sea, and Southwest Sea, respectively. Canonical correspondence analysis (CCA) results indicated that environmental factors, such as turbidity, electric conductivity (EC), and total phosphorus (TP), significantly influenced the distribution of epilithic diatoms. A random forest model showed that major environmental factors influencing the diatom species appearance included EC, salinity, turbidity, and total nitrogen. This study demonstrated that the spatial distribution of epilithic diatoms in the southern estuaries of the Korean Peninsula was determined by several factors, including a geographically higher tidal current-driven turbidity increase and higher industrial or anthropogenic nutrient-loading.
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spelling pubmed-66960932019-09-05 Benthic Diatom Communities in Korean Estuaries: Species Appearances in Relation to Environmental Variables Kim, Ha-Kyung Cho, In-Hwan Hwang, Eun-A Kim, Yong-Jae Kim, Baik-Ho Int J Environ Res Public Health Article In the Korean Peninsula’s southern estuaries, the distributive characteristics of epilithic diatoms and the important environmental factors predicting species occurrence were examined. The collection of diatoms and measurements of water quality and land-use were performed every May between 2009 and 2016, with no influence from the Asian monsoon and snow. Throughout the study, 564 diatoms were classified with first and second dominant species of Nitzschia inconspicua and N. perminuta. Based on diatom appearance and standing crops, the 512 sampling stations were divided into four groups by cluster analysis, and two regions, namely the West and East Sea. Geographically, G1, G2, G3, and G4 were located in the East Sea, Southeast Sea, West Sea, and Southwest Sea, respectively. Canonical correspondence analysis (CCA) results indicated that environmental factors, such as turbidity, electric conductivity (EC), and total phosphorus (TP), significantly influenced the distribution of epilithic diatoms. A random forest model showed that major environmental factors influencing the diatom species appearance included EC, salinity, turbidity, and total nitrogen. This study demonstrated that the spatial distribution of epilithic diatoms in the southern estuaries of the Korean Peninsula was determined by several factors, including a geographically higher tidal current-driven turbidity increase and higher industrial or anthropogenic nutrient-loading. MDPI 2019-07-26 2019-08 /pmc/articles/PMC6696093/ /pubmed/31357556 http://dx.doi.org/10.3390/ijerph16152681 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Kim, Ha-Kyung
Cho, In-Hwan
Hwang, Eun-A
Kim, Yong-Jae
Kim, Baik-Ho
Benthic Diatom Communities in Korean Estuaries: Species Appearances in Relation to Environmental Variables
title Benthic Diatom Communities in Korean Estuaries: Species Appearances in Relation to Environmental Variables
title_full Benthic Diatom Communities in Korean Estuaries: Species Appearances in Relation to Environmental Variables
title_fullStr Benthic Diatom Communities in Korean Estuaries: Species Appearances in Relation to Environmental Variables
title_full_unstemmed Benthic Diatom Communities in Korean Estuaries: Species Appearances in Relation to Environmental Variables
title_short Benthic Diatom Communities in Korean Estuaries: Species Appearances in Relation to Environmental Variables
title_sort benthic diatom communities in korean estuaries: species appearances in relation to environmental variables
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6696093/
https://www.ncbi.nlm.nih.gov/pubmed/31357556
http://dx.doi.org/10.3390/ijerph16152681
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